One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
A domestic cat can sprint at about 31 miles per hour.
274
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217